Vibration isolating structure

Abstract

The node is located on a first position side of the vibration exciter or a second position side of the vibration receiver with respect to the one end of the first beam and the one end of the second beam in an axial direction of an axis passing through the first position and the second position. A rotational displacement of the node is excited by a translational displacement of the vibration exciter and a translational displacement of the node associated with the translational displacement of the vibration exciter, and exhibits anti-resonance at a frequency within a frequency range higher than a first resonance frequency of the vibration isolating structure and lower than a second resonance frequency.

1 . A vibration isolating structure capable of reducing vibration transmitted from a vibration exciter to a vibration receiver, comprising:
 a first beam, one end of which is connected to the vibration exciter directly or via a first support; and   a second beam, one end of which is connected to the vibration receiver directly or via a second support and the other end of which is connected to the other end of the first beam via a node,   wherein the node is located on a first position side of the vibration exciter or a second position side of the vibration receiver with respect to the one end of the first beam and the one end of the second beam in an axial direction of an axis passing through the first position and the second position,   a rotational displacement of the node is excited by a translational displacement of the vibration exciter and a translational displacement of the node associated with the translational displacement of the vibration exciter, and exhibits anti-resonance at a frequency within a frequency range higher than a first resonance frequency and lower than a second resonance frequency of the vibration isolating structure.   
     
     
         2 . The vibration isolating structure according to  claim 1 , comprising:
 a plurality of vibration isolators, each having the first beam and the second beam, around the axis.   
     
     
         3 . The vibration isolating structure according to  claim 2 ,
 wherein the plurality of vibration isolators are formed at equal intervals around the axis.   
     
     
         4 . The vibration isolating structure according to  claim 1 ,
 wherein the vibration isolating structure is an integrally molded member.